Paget Disease of Bone involving radius in a 44-year-old man
The history of bone pain in this patient goes to at least 7 years ago. The cause of the recent biopsy was suspicion of relapsing chronic osteomyelitis. Histologically the lesion showed the typical findings of Paget Disease of bone, which is relatively rare in Turkish population.
Note especially "the bend" which characterizes many lesions involving the long bones. (See: "Shepherd's crook deformity"). Image courtesy of Bulent Celasun, MD, Ankara, Turkey. Used with permission.